refactor(ui): remove History link and add footer to authenticated pages

- Remove History navigation link from both desktop and mobile navbar
- Create dedicated Footer component for authenticated users
- Add Footer to Layout component used on Dashboard and other protected pages
- Footer includes platform navigation, support links, and legal section

frontend/src/components/layout/Footer.jsx

@@ -0,0 +1,88 @@
+import { Link } from 'react-router-dom';
+import { Video } from 'lucide-react';
+
+const Footer = () => {
+  return (
+    <footer className="bg-white border-t border-gray-200 mt-auto">
+      <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
+        <div className="grid grid-cols-2 md:grid-cols-4 gap-8">
+          <div>
+            <div className="flex items-center space-x-2 mb-4">
+              <Video className="w-5 h-5 text-primary-600" />
+              <span className="font-bold text-gray-900">spotlight.cam</span>
+            </div>
+            <p className="text-sm text-gray-600">
+              Video collaboration for West Coast Swing dancers.
+            </p>
+          </div>
+
+          <div>
+            <h3 className="text-sm font-semibold text-gray-900 mb-3">Platform</h3>
+            <ul className="space-y-2 text-sm">
+              <li>
+                <Link to="/dashboard" className="text-gray-600 hover:text-primary-600 transition">
+                  Dashboard
+                </Link>
+              </li>
+              <li>
+                <Link to="/events" className="text-gray-600 hover:text-primary-600 transition">
+                  Events
+                </Link>
+              </li>
+              <li>
+                <Link to="/matches" className="text-gray-600 hover:text-primary-600 transition">
+                  Matches
+                </Link>
+              </li>
+              <li>
+                <Link to="/profile" className="text-gray-600 hover:text-primary-600 transition">
+                  Profile
+                </Link>
+              </li>
+            </ul>
+          </div>
+
+          <div>
+            <h3 className="text-sm font-semibold text-gray-900 mb-3">Support</h3>
+            <ul className="space-y-2 text-sm">
+              <li>
+                <Link to="/how-it-works" className="text-gray-600 hover:text-primary-600 transition">
+                  How It Works
+                </Link>
+              </li>
+              <li>
+                <Link to="/about-us" className="text-gray-600 hover:text-primary-600 transition">
+                  About Us
+                </Link>
+              </li>
+              <li>
+                <Link to="/contact" className="text-gray-600 hover:text-primary-600 transition">
+                  Contact
+                </Link>
+              </li>
+            </ul>
+          </div>
+
+          <div>
+            <h3 className="text-sm font-semibold text-gray-900 mb-3">Legal</h3>
+            <ul className="space-y-2 text-sm">
+              <li>
+                <Link to="/privacy" className="text-gray-600 hover:text-primary-600 transition">
+                  Privacy Policy
+                </Link>
+              </li>
+            </ul>
+          </div>
+        </div>
+
+        <div className="border-t border-gray-200 mt-8 pt-6 text-center">
+          <p className="text-sm text-gray-500">
+            &copy; {new Date().getFullYear()} spotlight.cam. All rights reserved.
+          </p>
+        </div>
+      </div>
+    </footer>
+  );
+};
+
+export default Footer;

frontend/src/components/layout/Layout.jsx

@@ -1,4 +1,5 @@
 import Navbar from './Navbar';
+import Footer from './Footer';
 
 const Layout = ({ children, fullWidth = false, noPadding = false, pageTitle = null }) => {
   const mainClasses = fullWidth || noPadding
@@ -11,6 +12,7 @@ const Layout = ({ children, fullWidth = false, noPadding = false, pageTitle = nu
       <main className={mainClasses}>
         {children}
       </main>
+      <Footer />
     </div>
   );
 };

frontend/src/components/layout/Navbar.jsx

@@ -124,14 +124,6 @@ const Navbar = ({ pageTitle = null }) => {
               )}
             </Link>
 
-            <Link
-              to="/history"
-              className="flex items-center space-x-1 px-3 py-2 rounded-md text-sm font-medium text-gray-700 hover:text-primary-600 hover:bg-gray-100"
-            >
-              <History className="w-4 h-4" />
-              <span>History</span>
-            </Link>
-
             <Link
               to="/profile"
               className="flex items-center space-x-1 px-3 py-2 rounded-md text-sm font-medium text-gray-700 hover:text-primary-600 hover:bg-gray-100"
@@ -249,13 +241,6 @@ const Navbar = ({ pageTitle = null }) => {
                 </span>
               )}
             </Link>
-            <Link
-              to="/history"
-              onClick={() => setMenuOpen(false)}
-              className="flex items-center gap-2 px-3 py-2 rounded-md text-sm font-medium text-gray-700 hover:bg-gray-100"
-            >
-              <History className="w-4 h-4" /> History
-            </Link>
             <Link
               to="/profile"
               onClick={() => setMenuOpen(false)}